Package org.apache.hadoop.hive.ql.exec

Examples of org.apache.hadoop.hive.ql.exec.UDFArgumentException

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    inputOIs = args;
    numCols = args.length - 1;

    if (numCols < 1) {
      throw new UDFArgumentException("parse_url_tuple() takes at least two arguments: " +
          "the url string and a part name");
    }

    for (int i = 0; i < args.length; ++i) {
      if (args[i].getCategory() != ObjectInspector.Category.PRIMITIVE ||
          !args[i].getTypeName().equals(serdeConstants.STRING_TYPE_NAME)) {
        throw new UDFArgumentException("parse_url_tuple()'s arguments have to be string type");
      }
    }

    seenErrors = false;
    pathParsed = false;
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      dateWritableConverter = ObjectInspectorConverters.getConverter(
        (PrimitiveObjectInspector) arguments[0],
        PrimitiveObjectInspectorFactory.writableDateObjectInspector);
      break;
    default:
      throw new UDFArgumentException(
        "DATE_SUB() only takes STRING/TIMESTAMP/DATEWRITABLE types as first argument, got "
          + inputType1);
    }

    inputType2 = ((PrimitiveObjectInspector) arguments[1]).getPrimitiveCategory();
    if (inputType2 != PrimitiveCategory.INT) {
      throw new UDFArgumentException(
        " DATE_SUB() only takes INT types as second  argument, got " + inputType2);
    }
    intWritableConverter = ObjectInspectorConverters.getConverter(
      (PrimitiveObjectInspector) arguments[1],
      PrimitiveObjectInspectorFactory.writableIntObjectInspector);
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      DateWritable dw = (DateWritable) dateWritableConverter.convert(arguments[0].get());
      calendar.setTime(dw.get());
      calendar.add(Calendar.DAY_OF_MONTH, -toBeSubed.get());
      break;
    default:
      throw new UDFArgumentException(
        "DATE_SUB() only takes STRING/TIMESTAMP/DATEWRITABLE types, got " + inputType1);
    }
    Date newDate = calendar.getTime();
    output.set(formatter.format(newDate));
    return output;
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  }

  @Override
  public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
      throw new UDFArgumentException(opName + " requires one argument.");
    }

    Category category = arguments[0].getCategory();
    if (category != Category.PRIMITIVE) {
      throw new UDFArgumentTypeException(0, "The "
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    case DATE:
      DateWritable dw = (DateWritable) converter.convert(argument.get());
      date = dw.get();
      break;
    default:
      throw new UDFArgumentException(
        "TO_DATE() only takes STRING/TIMESTAMP/DATEWRITABLE types, got " + inputType);
    }
    return date;
  }
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    case DATE:
      converter = ObjectInspectorConverters.getConverter((PrimitiveObjectInspector)arguments[i],
        PrimitiveObjectInspectorFactory.writableDateObjectInspector);
      break;
    default:
      throw new UDFArgumentException(
          " DATEDIFF() only takes STRING/TIMESTAMP/DATEWRITABLE types as " + (i + 1)
              + "-th argument, got " + inputType);
    }
    return converter;
  }
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    if (arguments.length != 1) {
      throw new UDFArgumentLengthException(
        "to_date() requires 1 argument, got " + arguments.length);
    }
    if (arguments[0].getCategory() != Category.PRIMITIVE) {
      throw new UDFArgumentException("to_date() only accepts STRING/TIMESTAMP/DATEWRITABLE types, got "
          + arguments[0].getTypeName());
    }
    argumentOI = (PrimitiveObjectInspector) arguments[0];
    inputType = argumentOI.getPrimitiveCategory();
    ObjectInspector outputOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    switch (inputType) {
    case CHAR:
    case VARCHAR:
    case STRING:
      inputType = PrimitiveCategory.STRING;
      textConverter = ObjectInspectorConverters.getConverter(
        argumentOI, PrimitiveObjectInspectorFactory.writableStringObjectInspector);
      break;
    case TIMESTAMP:
      timestampConverter = new TimestampConverter(argumentOI,
        PrimitiveObjectInspectorFactory.writableTimestampObjectInspector);
      break;
    case DATE:
      dateWritableConverter = ObjectInspectorConverters.getConverter(argumentOI,
          PrimitiveObjectInspectorFactory.writableDateObjectInspector);
      break;
    default:
      throw new UDFArgumentException(
          "TO_DATE() only takes STRING/TIMESTAMP/DATEWRITABLE types, got " + inputType);
    }
    return outputOI;
  }
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    case DATE:
      DateWritable dw = (DateWritable) dateWritableConverter.convert(arguments[0].get());
      output.set(formatter.format(dw.get()));
      break;
    default:
      throw new UDFArgumentException(
          "TO_DATE() only takes STRING/TIMESTAMP/DATEWRITABLE types, got " + inputType);
    }
    return output;
  }
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            sb.append(", ");
          }
          sb.append(arguments[i].getTypeName());
        }
        sb.append(")}");
        throw new UDFArgumentException(sb.toString());
      }
    }
    compareOI = conversionHelper.get();

    checkIfInSetConstant();
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  }

  @Override
  public StructObjectInspector initialize(ObjectInspector[] args) throws UDFArgumentException {
    if (args.length != 1) {
      throw new UDFArgumentException("explode() takes only one argument");
    }

    ArrayList<String> fieldNames = new ArrayList<String>();
    ArrayList<ObjectInspector> fieldOIs = new ArrayList<ObjectInspector>();

    switch (args[0].getCategory()) {
    case LIST:
      inputOI = args[0];
      fieldNames.add("col");
      fieldOIs.add(((ListObjectInspector)inputOI).getListElementObjectInspector());
      break;
    case MAP:
      inputOI = args[0];
      fieldNames.add("key");
      fieldNames.add("value");
      fieldOIs.add(((MapObjectInspector)inputOI).getMapKeyObjectInspector());
      fieldOIs.add(((MapObjectInspector)inputOI).getMapValueObjectInspector());
      break;
    default:
      throw new UDFArgumentException("explode() takes an array or a map as a parameter");
    }

    return ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames,
        fieldOIs);
  }
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